My ˝ Suomi / ˝ AK 9mm build….. I call it the SUM-AK: PIC HEAVY - Page 2 - M14 Forum

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My ˝ Suomi / ˝ AK 9mm build….. I call it the SUM-AK: PIC HEAVY

This is a discussion on My ˝ Suomi / ˝ AK 9mm build….. I call it the SUM-AK: PIC HEAVY within the Foreign forums, part of the Gun Forum category; Really enjoyed the pics and progression of the work/build. Excellent post and a great looking innovative build! I do all kinds of stock work, but ...


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Old March 16th, 2017, 08:23 PM   #16
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Really enjoyed the pics and progression of the work/build. Excellent post and a great looking innovative build!

I do all kinds of stock work, but that fabricating is outside of my skill set!

Congrats! M1Army

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Old March 16th, 2017, 08:37 PM   #17
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Master at metal working! Thanks

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Old March 20th, 2017, 01:59 PM   #18
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Thank you very much for posting! That is some excellent design and build, congratulations!

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Old March 20th, 2017, 02:18 PM   #19
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What type of welder did you use to do that? Very neat work.

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Old March 20th, 2017, 05:22 PM   #20
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What type of welder did you use to do that? Very neat work.

Miller 180 SD / Transformer based TIG welder.

Excellent for everything except thick aluminum which I do not weld unless I have to. If was welding thick aluminum I would add helium gas mix to bump up the heat.



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Old March 28th, 2017, 04:51 PM   #21
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Roughed in my front sight base. I have a VEPR front sight top half that will be used since the AK sight theme is still in effect.
I made the base a snug fit to test fire and get some numbers to have a 100 yard zero. A few rough measurements , a trip to the range then a little more TIG welding.

I need to drill a couple vent / drain holes in the front bottom of my gas piston / weight tube as well. These will be parkerized to get the ID some finish protection and appliance epoxy finished after that.

Leveled and rear sight measured~



Its WAY tall~



Now the sights are level~






Break time and waiting for a range trip~


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Old April 18th, 2017, 05:04 PM   #22
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Update~

Added some extra metal to the weak link....
I hogged out the ejection port area more aggressively than required but having a TIG welder makes putting it back easy, sometimes.

I cut a piece of stainless steel .150" thick and taped it to the ejection port and test fired it. I had a couple cases fail to clear he action / hitting the material I added so I milled .030" off in increments until I had 100% ejection and the maximum material added for strength. After running a 1/2 drum thru it with zero issues I TIG welded the shim in place on all sides. I also and blended the inside sharp edge.
Its still fugly right now and not finished pretty yet.

The receiver section is now 1/4" tall X 5/16 wide and a laminate of trunnion steel , receiver steel and stainless steel.
MUCH stronger than the original I started with.

Now I need to weld the front sight and base on.


Testing for max material to add~




Its MORE solid now~






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Old April 18th, 2017, 05:04 PM   #23
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Update~

Added some extra metal to the weak link....
I hogged out the ejection port area more aggressively than required but having a TIG welder makes putting it back easy, sometimes.

I cut a piece of stainless steel .150" thick and taped it to the ejection port and test fired it. I had a couple cases fail to clear he action / hitting the material I added so I milled .030" off in increments until I had 100% ejection and the maximum material added for strength. After running a 1/2 drum thru it with zero issues I TIG welded the shim in place on all sides. I also and blended the inside sharp edge.
Its still fugly right now and not finished pretty yet.

The receiver section is now 1/4" tall X 5/16 wide and a laminate of trunnion steel , receiver steel and stainless steel.
MUCH stronger than the original I started with.

Now I need to weld the front sight and base on.


Testing for max material to add~




Its MORE solid now~






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